Arrived on call client stated she has a very slow draining kitchen sink and a leak under kitchen sink. Upon inspection clients dishwasher tailpiece was cross threaded and leaking. As a courtesy, I replaced the dishwasher tailpiece and a nut and washer on the trap arm. Clients kitchen sink appears to be clogged due to grease. Hydro jetted kitchen sink and also snaked it. When done I tested for leaks and filled kitchen sink up with hot water multiple times. Cleints kitchen sink is now draining as it should and there are no leaks at this time.